第4和第9部分有重复的内容。导致报错：ERRORS:
assets.Asset.idc: (fields.E300) Field defines a relation with model 'IDC', which is either not installed, or is abstract.
assets.Asset.manufacturer: (fields.E300) Field defines a relation with model 'Manufacturer', which is either not installed, or is abstract.
把重复的内容去掉即可，在总结那里的代码是没有错的。
第4和第9部分有重复的内容。导致报错：ERRORS: assets.Asset.idc: (fields.E300) Field defines a relation with model 'IDC', which is either not installed, or is abstract. assets.Asset.manufacturer: (fields.E300) Field defines a relation with model 'Manufacturer', which is either not installed, or is abstract. 把重复的内容去掉即可，在总结那里的代码是没有错的。